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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 383 (Engine Mechanical - Hybrid (LZ1) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Valve Rocker Arm Cover Replacement - Left Side >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • All gasket surfaces should be free of oil an/or other foreign material during assembly.
  • DO NOT reuse the valve rocker arm cover gasket.
  • If the PCV valve grommet has been removed from the rocker cover, install a NEW grommet during assembly.
    Fig 1: Rocker Arm Cover Gasket
    GM490696Courtesy of GENERAL MOTORS CORP.
  1. Install a NEW rocker cover gasket (1).
    2. Fig 2: Valve Rocker Arm Cover
    GM1277108Courtesy of GENERAL MOTORS CORP.
  2. Install the valve rocker arm cover.
    3. CAUTION:

    Refer to Fastener Caution .

  3. Tighten the rocker arm cover bolts.

    Tighten 

    Tighten the bolts to 12 N.m (106 lb in).

    4. Fig 3: PCV Hose
    GM1696791Courtesy of GENERAL MOTORS CORP.
  4. Install the PCV hose.
    5. Fig 4: Ignition Coils And Bracket
    GM1402016Courtesy of GENERAL MOTORS CORP.
  5. Apply threadlock to the threads of the ignition coil bracket studs. Refer to Adhesives, Fluids, Lubricants, and Sealers .
  6. Position the ignition coil bracket (719) onto the rocker cover.
  7. Install the ignition coil bracket studs (720).

    Tighten 

    Tighten the studs to 12 N.m (106 lb in).

  8. Install the spark plug wires (724) to the ignition coils.
    9. Fig 5: Connector Position Assurance (CPA) Retainer, Connector And Clips
    GM1965798Courtesy of GENERAL MOTORS CORP.
  9. Position the engine harness, as necessary.
  10. Install two engine harness clips (3) to the ignition coil bracket studs.
  11. Connect the engine harness electrical connector (1) to the ignition coil wire harness.
  12. Install the CPA retainer (2).
  13. Install the intake manifold cover. Refer to Upper Intake Manifold Sight Shield Replacement .
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